Reinforcement for concrete construction.



J. 0. ELLINGER.

REINFORCEMENT FOR CONCRETE CONSTRUCTION.

APPLICATION FILED SEPT. 29, 1909.

Patented Apr. 28, 1914.

UNITED STATES EATENT OFFICE.

JULIAN o. ELLINGER, or NEW YORK, N. Y.

REINFORCEMENT FOR CONCRETE CONSTRUCTION.

To all whom it may concern:

Be it known that I, J ULTAN O. ELLINGER, a citizen of the United States,and a resident of the city, county, and State of New York, have inventedcertain new and useful Improvements in Reinforcements for ConcreteConstruction, of which the following is a specification.

This invention relates to improvements in reinforcements for beams,girders and like constructions in which the body portion is composed ofplastic material such as concrete.

The objects of the invention will appear from the hereinafterdescription.

Several embodiments of the invention are disclosed in the accompanyingdrawing which is here described, and in which the same referencecharacter indicates the same part in the several views.

Referring to the drawing: Figure 1 is a perspective view of one type ofmy invention. Fig 2 is a side elevation of another form ofthe invention.Fig. 3 is an end elevation. Fig. 4 is an end view of one of the strapsforming the shear member of the construction shown in Fig. 2. Fig. 5 isa bottom view showing one of the straps connected to the longitudinalbar forming the tension member. Fig. 6 is a modified construction.

The part marked 10 represents a longitudinal bar forming the tensionmember. This bar is provided throughout its length with weldingprojections. Preferably, these projections consist of longitudinal ribs11 10- rated on each side of the bar and at the upper and lower portionsthereof. 7

12 represents transverse rods formed in the shape of loops with theirfreeends connected to the projections or ribs 11 by electric welding.These loops form the shear members of the construction. In some forms ofthe device these loops or shear members may be perpendicular to theiongitudinal bars, as shown to the left in Fig. 1; and in other casesthey may be placed at an incline thereto, as shown to the right "in Fig.1.

Instead of forming the transverse members out of the rods shown in Fig.1, they may be formed of straps 13, as shown in the other figures of thedrawing. The ends of these straps are provided with projections or ribs14 which are in contact with the projections on the bar 10. These ribsSpecification of Letters Patent.

Application filed September 29, 1909.

Patented Apr. 28, 1914.

Serial No. 520.068.

Of course, when the rods 12 are used, as I shown in Fig. 1, it is notnecessary to provide them with ribs or projections, as the shape of therods themselves, together with the projections 11 permit welding in themanner just described.

Instead of forming the shear members of one continuous piece, as shownin- Fig. 2, the elements forming the same may be separate rods orplates, as shown in Fig. 6; that is to say, one element '15 may bewelded on one side of the longitudinal bar 10 and the other element 16on the other side of the bar. It may be here stated that instead of thelongitudinal bar being provided with only two ribs on the side, it maybe provided with a greater number, and in Fig. 6 I have shown three suchribs. The shape of the ribs may be varied and in fact the welding pointsinstead of being ribs, may be a series of projections extending fromthe-side faces of the bar 10, it only being necessary to provide pointsor projections in order to get a perfect weld between the longitudinalbar or tension members and the transverse rods or straps formingtheshear members. When the cross sectional area of the Welding portionof the rods or straps is substantially of the same area as the saidprojections on the bar these points melt down at about the same time forthe purpose of welding at that point. It is to be understood, of course,that these projections are of smaller cross section than the bar itselfto permit this operation.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is:

1.. In a reinforced concrete construction, a longitudinal bar havingwelding projections on the sides thereof, and loops formed of rigidelements with the inner sides of their free ends in contact with saidprojections and weldably connected to the said bar at the sides thereofby said projections.

2. In a reinforced concrete construction, a longitudinal bar forming atension memher having welding projections on the sides thereof, and aseries of loop straps forming shear members, the free ends of each strapbeing provided with Welding projections, the said straps at the innersides of their free ends being weldably connected to the longitudinalbar to form a homogeneous construction 3. As a neW article ofmanufacture, a concrete reinforcing bar having lateral ribs orprojections at opposite sides of relatively small cross-section comparedto the crosssection of the body portion of the bar, and looped shearmembers each of approximately the same cross-section as the ribs orprojections, and Welded thereto at both sides of the bar,

4:. As a new article of manufacture, a concrete reinforcing bar, havinglateral ribs or projections at opposite sides, said ribs or projectionsbeing each of relatively small cross-section compared to that of thebody of the bar, and looped shear members having a portion thereof of across-section substantially equal to the cross-section of the said ribsor projections and engaging opposite sides of the bar, and Welded to theribs or projections.

5. In a reinforced concrete construction, a longitudinal bar havingWelding projections formed thereon, and shear members consisting ofloops formed of rigid elements with the inner sides of their free endsin conme est tact With said projections and Weldably connected to thesaid bar by said projections 6. As a new article of manufacture, aconcrete reinforcing bar having projecting portions of smaller crosssection than the body of the bar, and reinforcing members Welded to saidprojections, each of said reinforcing members consisting of a loopedrod, the cross sectional areas of the projecting portion of the bar andof the reinforcing members being such that the portions to be Welded maybe brought to a Welding heat in substantially the same period of time.

As a new article of manufacture, a concrete reinforcing bar havinglateral ribs or projections at opposite sides, each of said ribs orprojections being of a relatively small cross section compared to thatof the body of the bar, and looped rigid elements with the inner sidesof their free ends having a cross sectional area substantially equal tothe cross section of said ribs or projections, and engaging the oppositesides of said bar, and Weldably connected thereto by said ribs orprojections.

in Witness whereof I have hereunto set my hand at the city, county andState of New York, this 28th day of September, 1909.,

JULIAN O. ELLINGER.

lin presence of- ALLAN W, Foosn, lsAnnL R. Riorranns.

